Civic Sedan L4-1590cc 1.6L SOHC (D16A6) MFI (1990)
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Atmospheric Pressure (PA) Sensor: Description and Operation
Fig. 34 Atmospheric Pressure Sensor And Voltage Chart
The PA sensor, mounted inside the vehicle in the right kick panel area, is a silicon diaphragm type strain gauge sensor. It converts atmospheric
pressure in the intake manifold to an electric signal and inputs that signal to the ECU. This signal is used by the ECU as a reference signal, and
compares it to the signal from the MAP sensor to more accurately calculate the engine load condition.
